Indicate how much an MR branch diverges from the target branch

3 files changed, 46 insertions, 1 deletions

diff --git a/features/project/merge_requests.feature b/features/project/merge_requests.feature
index 495f25f28e7..a69089f00c4 100644
--- a/features/project/merge_requests.feature
+++ b/features/project/merge_requests.feature
@@ -26,6 +26,16 @@ Feature: Project Merge Requests
     When I visit project "Shop" merge requests page
     Then I should see "other_branch" branch
 
+  Scenario: I should not see the numbers of diverged commits if the branch is rebased on the target
+    Given project "Shop" have "Bug NS-07" open merge request with rebased branch
+    When I visit merge request page "Bug NS-07"
+    Then I should not see the diverged commits count
+
+  Scenario: I should see the numbers of diverged commits if the branch diverged from the target
+    Given project "Shop" have "Bug NS-08" open merge request with diverged branch
+    When I visit merge request page "Bug NS-08"
+    Then I should see the diverged commits count
+
   Scenario: I should see rejected merge requests
     Given I click link "Closed"
     Then I should see "Feature NS-03" in merge requests
diff --git a/features/steps/project/merge_requests.rb b/features/steps/project/merge_requests.rb
index dde864f5180..8bf423cc64b 100644
--- a/features/steps/project/merge_requests.rb
+++ b/features/steps/project/merge_requests.rb
@@ -60,7 +60,6 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
     expect(page).not_to have_content "Feature NS-03"
   end
 
-
   step 'I should not see "Bug NS-04" in merge requests' do
     expect(page).not_to have_content "Bug NS-04"
   end
@@ -121,6 +120,22 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
            author: project.users.first)
   end
 
+  step 'project "Shop" have "Bug NS-07" open merge request with rebased branch' do
+    create(:merge_request, :rebased,
+      title: "Bug NS-07",
+      source_project: project,
+      target_project: project,
+      author: project.users.first)
+  end
+
+  step 'project "Shop" have "Bug NS-08" open merge request with diverged branch' do
+    create(:merge_request, :diverged,
+      title: "Bug NS-08",
+      source_project: project,
+      target_project: project,
+      author: project.users.first)
+  end
+
   step 'project "Shop" have "Feature NS-03" closed merge request' do
     create(:closed_merge_request,
            title: "Feature NS-03",
@@ -490,6 +505,18 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
     end
   end
 
+  step 'I should see the diverged commits count' do
+    page.within ".mr-source-target" do
+      expect(page).to have_content /([0-9]+ commits behind)/
+    end
+  end
+
+  step 'I should not see the diverged commits count' do
+    page.within ".mr-source-target" do
+      expect(page).not_to have_content /([0-9]+ commit[s]? behind)/
+    end
+  end
+
   step 'I should see "Bug NS-05" at the top' do
     expect(page.find('ul.content-list.mr-list li.merge-request:first-child')).to have_content("Bug NS-05")
   end
diff --git a/features/steps/shared/paths.rb b/features/steps/shared/paths.rb
index f7812a707c4..da9d1503ebc 100644
--- a/features/steps/shared/paths.rb
+++ b/features/steps/shared/paths.rb
@@ -395,6 +395,14 @@ module SharedPaths
     visit merge_request_path("Bug NS-05")
   end
 
+  step 'I visit merge request page "Bug NS-07"' do
+    visit merge_request_path("Bug NS-07")
+  end
+
+  step 'I visit merge request page "Bug NS-08"' do
+    visit merge_request_path("Bug NS-08")
+  end
+
   step 'I visit merge request page "Bug CO-01"' do
     mr = MergeRequest.find_by(title: "Bug CO-01")
     visit namespace_project_merge_request_path(mr.target_project.namespace, mr.target_project, mr)